Collating machine



April 30, 1957 H. H. WALLER n 2,790,637

coLLATING MACHINE Original Filed May 2, 1949 4 Sheets-Sheet 1 vla-Y-fig' /4 153 /36 /3 i y ,30 i? /30 [26' 3f /gN` ai 7; /30l gd /6 *nl l/03 /gg s OP [a4 s /7 5a 46 6.0 .5'0 .ff 2f 52 5,

S o y 6 8 f5 i /9 6g f@ 74' g HARRY H ift/ALLER E INVENTOR ATTORNEY 4Sheets-Sheet 2 Original Filed May 2, 1949 Mm. MM. \N.

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INVENTOR.

ATTORNEY April 3-0, 1957 H. H. wALLER coLLATINcA MACHINE 4 Sheets-Sheet3 Original Filed May 2, 1949 HARRY WMM/e IN VEN TOR.

A TTRNE Y April 30, 1957 H. H. wALLER coLLATING MACHINE 4 Sheets-Sheet 4Original Filed May 2, 1949 HARRy h. WALL 5R IN VEN TOR.

A TTORNE Y United States Patent COLLATlNG MACHINE Harry H. Waller,Dallas, Tex.

Continuation of abandoned application'Seriai No. 90,8524, May 2, 1949.This application August 19, 1953, Serial No. 375,116

Claims. (Cl. 270-58) This invention relates to collating machines andmore particularly to a machine for collating sheets of paper.

This application is a continuation of my co-pending application, SerialNo. 90,854, now abandoned.

An object of the invention is to provide a new and improved collatingmachine having a rotary carrier which supports two sets ofcircumferentially spaced platforms maintained in horizontal planes.

Another object of the invention is to provide a new and improvedcollating machine, of the type described above, having pneumaticgrippers or suction feet mounted on an oscillating frame fortransferring sheets of pape from the platforms onto a table.

Still another object o-f the invention is to provide a new and improved'collating machine, of the type described above, having blowers forreleasing a blast of air in the direction of the stacks of sheetscarried'by the platforms, as they approach a position to be engaged bythe suction feet, to separate the topmost sheet from' the stack beforeit is engaged by the suction feet.

A further object of the invention is to provide means for operating thesuction feet and the air blast means in time relation to the movementsof the rotary carrier.

A still further object of the invention is to provide a new and improvedcollating machine, of 'the' type described, having automatic means foradjusting the platforms to compensate for the diminishing thickness ofthe stacks of sheets on the platforms as the sheets are singlytransferred to the table. 4

With the foregoing objects in View, the invention has further referenceto certain features of accomplishment, which will become apparent' asthe description proceeds, taken in connection with the accompanyingdrawings@ Figure l is a perspective Viewy of the collating machine.

Figure 2 is a perspective View of the collating machine showing thesuction feet in position to pick up a sheet of paper oi one of theplatforms.

'Figure 3 is a perspective view showing the suction feet immediatelyafter the suction has been broken to permit the sheet of paper to droponto the table.

Figure 4 is a fragmentary view showing the manner the top sheet in astack of sheets on a platformA is separated from the-stack.

Figure 5 is a fragmentary sectional view showing'the means for adjustingthe platforms to compensate for the diminishing height of the stacks ofpaper on theplatfor'rns'.

Figure 6 is a fragmentary perspective View showing the lever system forpivoting the suction 'feet and blower nozzles downwardly after they arepositioned over the leading edge of a platform.

Referring Inow to the drawing,` the collating machine 10 includes aframe 11 having a substantiallyrectangular base 12 and substantiallyA-shaped sides 13 and 14. A rocking frame 15 has sides 16 and 17 whichare pivotally mountedon the base 12 by means of a shaft 18 which'i'sjournalledin pillow blocks 19 and 20 'mounted on the base'.

The rocking frame includes a transverse connecting "ice shaft 21 rigidlyconnected at opposite ends to the sides 16 and 17 and a hollow conduit22 also connected at its ends to the sides 16 and 17.

A rotary carrier 23 is rotatably mounted on and between the'sides 13 and14 of the frame 11. The rotary carrier includes a pair of armed sides 24and 25 which are mounted on a common shaft 26, one of whose ends issuitably journailed in a journal block on the side 13 of the frame 11and the other in a plate 27 which is rigidly mounted on a stub shaft 28rigidly secured to the side 14 of the frame 11 by a block 28b.

A guide 29 is rotatably mounted on the stub shaft 28 between the side 14and the armed side 24 of the rotary carrier. Aligned arms 30 of therotary carrier support transverse platform shafts 31 which arejournalled in the outer ends of the arms Sti. The platforms 32 aremounted on the platform shafts in a manner which is to be described indetail below. In order to maintain the platforms 32 in horizontalpositions throughout the rotation of the rotary carrier, links 33 areprovided which are rigidly connected at one end to the ends of theplatform shafts 31 and pivotally at the other end to the arms 34 of theguide 29, as at 35. It will be apparent that since the guide and therotary carrier rotate aboutspaced parallel horizontal axes and since thelinks areA rigidly connected to the platform shafts 31, the platformshafts will not rotate about their longitudinal axes as the rotarycarrier is rotated, although of course, relative rotational movementdoes occur between the platform shafts and the arms 30 of the rotarycarrier.

The shaft 26 of the rotary carrier is connected to the shaft 36 of anelectric motor 37 by a transmission which includes the pulleys 33 and 39on the motor shaft 36 and on a shaft 4i?, respectively, which areconnected by a belt 41. The pulley 39 is rigidly secured to the shaft 40rotatably mounted on pillow blocks 42 secured to the base 12. The shaftiii is also provided with a small pulley 43 which is connected to alarge pulley 44 by a belt 45.

The large pulley 44 is rigidly mounted on a shaft 46 which is journalledin bearing blocks i7 secured to the members 4x8 and 49 of the frame 11.A gear 50 on the shaft d6 meshes with a large gear 51 of a control shaft52 which is rotatably mounted on the members 46 and 49 of the frame bybearing blocks 53 and 54. A sprocket S5 on the control shaft 52 isconnected to a large sprocket 56 of the shaft 26 of the rotary carrierby a chain 57. It will then be seen that the rotary carrier is connectedto the shaft 36 and will be rotated whenever the motor 37 is energized.

The control shaft 52 is connected to the shaft 21 of the rocker frame 1Sby means of an arm 58 rigidly secured to the control shaft which ispivotally connected at its outer end, as at 59, to a block 6u slidablymounted on rods 61 which are rigidly secured to a block 62 rotatablymounted on the shaft 21. Springs 63 on the rods 61 between the slidingblock 6d and the rings or collars 64 'onthe ends of the rods serve asshock absorbers. The movement ofthe sliding block on the rods is limitedby the lrings or collars 65 rigidly secured to the rods 61. It will beseen that as the control shaft 52 is rotated, the arm 53 connected tothe rocker frame shaft 21' Vwill cause the'rocker shaft to rotate towardand away from the rotary carrier about a pivotal axis concentric withthe central `axis of the shaft 18.

Adjustably mounted on the hollow shaft 22 are a plurality of arms 66which are located in any desired position on the shaft by the screws 67threaded in the arms. The arms are provided at their free ends withsuction feet 68 having ttings 69a which extend upwardlyrthrough 3suitable bores in the arms and are locked in place by set screws 69h.

The rocker frame arms 66 also support blower nozzles 69 by means ofbrackets 70 which are secured to the arms 66 by bolts 71. The suctionfeet are connected to the inlets of suitable pumps 72 through conduits73 and valves 74 which are opened and closed by cams 75 on the controlshaft, in the same manner as are the valves l disclosed in theco-pending application. The outlets of the pumps 72 are connected toopposite ends of the hollow shaft 22, whose ends are closed by suitableplugs, by conduits 76 and valves 77 which are opened and closed by cams78 on the control shaft. The hollow shaft is provided with a separatorplug 79 so that only one pair of blower nozzles may be supplied with airat any one time if desired by shutting oi either pump 72. The pumps 72are driven by an electric motor 80.

The cams 75 and 78 are so shaped and aligned that as the rocker frame ispivoted forwardly to bring the suction feet over the stack 81 of sheets82 on the nearest platform 32, the valves 74 open the valves 77 and ablast of air is forced through the nozzles 69 which is directed at theedges of the sheets 82 causing the topmost sheet 82 to be liftedupwardly toward the suction feet. The topmost sheet 82 is then held tothe suction feet by the suction so that the topmost sheet will be drawnolf the stack as the rocker frame is pivoted away from the rockercarrier. The cams 78 then close valves 74 but the valves 77 stay openuntil the topmost sheet is carried over one of the tables 83 when thecams 78 allow the valves `77 to close. Since the suction is thusdestroyed, the sheet is no longer held to the suction feet and thereforedrops onto To provide and its lower end is pivotally secured as at 87 toa lever f 88 rotatably mounted on the shaft 18. A link 90 has one endpivotally connected to the lever 88 and its other end to one end of thebell crank lever 91 as at 93. The bell crank lever 91 is rotatablymounted ona stub shaft 92 mounted on the side 13 of the frame 11. Theother V end'of the bell crank is 'provided with a cam follower 97 whichcontacts the cam 98 on the control shaft 52. The bell crank lever 91 isbiased toward the cam 98 by a spring 99, Ione of whose ends is securedto the lever 91 at 100 and the other to the upright 101 on the base 12.The cam 98 is so shaped that the bell crank lever is pivoted about theshaft 92 to rotate the rocker arms 66 downwardly in a times sequence toposition the suction feet and the blower nozzles properly with respectto the platforms 32 from which sheets of paper are to be removed.

It will be seen now that the various valves, the rocker frame 15, therocker Iframe arms 66 and the valves 74 and 77 are actuated in atimedsequence by the various cams and the arm 58 mounted on the control shaft52 so that if it be assumed that the various elements of the machine arein the position shown in Figure 2, the suction feet of the left pair ofarms 66 (Figure l) grip a sheet of paper, the valves 74 and 77 beingopen. As the l The valves 74 are then closed so that the suction isremoved from the suction feet 68 and the sheet drops onto the table 83.In this position, of course, the arms 66 are out of path of travel ofthe next pair of platforms 32 being carried toward downwardly and pastthe rocker frame arms 66. When the next pair of platforms has moved pastthe arms 66, the rocker frame is again pivoted toward the position shownin Figure 2 and as it approaches this position rst the valves 74 areopened to cause the suction feet to again become operative and then thevalves 77 are opened to cause a stream of air to flow from the blowernozzles. This sequence of operations is repeated yfour times during eachrevolution of the rotary carrier.

While only one pair of rocker frame arms 66 were described as beingoperative, it will be understood that both pairs may operatesimultaneously so that a stack of papers may be collated on each table83.

The right hand table 83 (Figure 1) is provided with slot102 in which aguide 103 of a shuttle plate 104 may travel. The shuttle plate may bemoved reciprocably by a cam 105 on the control shaft 52 to which it isconnected through a suitable mechanical linkage which includes a chain106 connected to a cam follower, not shown, and to the shuttle plate.The movement of the shuttle plate is so timed that it moves to the left,Fig ure 1, as the rocker frame 15 is pivoted toward the rotary carrierso that a sheet of paper carried on the wire 107 is moved over the lefthand table 83. The direction of the movement of the shuttle plate isthen reversed and this sheet of paper slides off the wire since its endsbend downwardly on either side of the wire 107 and abut the slide plate108 disposed on the left hand side of the right hand table 83.

By using the shuttle plate 104 and the wire 107, eight sheets of papermay be collated from the eight platfomis in a single stack on the lefthand table 83.

The tables 83 are vertically adjustable since their cylindrical legs 109telescope over upright standards 110 of the base 12 and are securedthereto by set screws 111. It will be apparent that the left hand table83 must be in a lower position than the right hand table when theshuttle plate is to be used.

In order that the blower nozzles and suction feet operate properly, thetop sheets of the stacks of paper on the platforms must always bemaintained in substantially the same position relative to the blowernozzles and the suction feet during the operation of separating the topsheets from the stacks. As the collating machine operates, the thicknessof each stack diminishes and it is necessary therefore to provide ameans for automatically raising each platform `to maintain the top sheetin proper position.

Each platform 32 has a dependent leg 113, provided on one side withteeth or serrations 114 which extends downwardly through a suitableaperture or slot in a block 115 rigidly mounted on its associated shaft31.

A keeper pawl 116 is mounted on the block by means of a shaft 117rotatably mounted on the block and having a handle 118. The keeper pawl116 engages the scrF rations 114 and prevents downward movement of theleg 113 except when the handle 118 is pivoted to rotate the shaft 117 tomove the pawl 116 out of engagement with the serrations. The weight ofthe handle is sutlicient to maintain the pawl 116 in serration-engagingposition and prevent downward movement of the leg 113 through the block.

A second adjusting pawl 119 is mounted on the vertically slidable plate120 mounted in a slot of the block 115 and has a vertical slot 121through which the shaft 117 extends. The adjusting pawl is mountedpivotally on the plate 120 by means of a pin 122 and is movable towardthe serrations of the leg 113 by an arm 123 extending radially from ashaft 124 which extends through the slot 121 of the slidable plate 120.The shaft 124 is also prorf t.

d vided with an upwardly extendingv arm 2125 Vwhich hasa-horizontalextension 126 whichisadapted toslide along the leg 127 yof aslide 128 formed of an L-shaped member 128 having another leg 129extending Aperpendicularly yfrom the leg 127.

The slides 128 are secured to the ysides 13 and 14 of the frame 1.1 byrods 130. A gate '131 pivotallyfsecured as at 132 to the upper portionof each slide 128 is free Ito pivot upwardly as long as the top -sheetof the ystack of sheets .on the adjacent platform 32 is at or above thedesired height relative to the blower nozzles and the suction feet.

The gates 131 are locked against upward movement when the top sheet ,isat a lower level by a feeler gage mechanism 133 which includes a roller134 rotatably secured to the lower end of an arm 135 whose upper end issecured to a shaft 136 rotatably mounted on the frame 11 by means of abracket 137. A lock rod 138 extends ydownwardly from the shaft 136 andis adapted to engage the lower portion of its associated gate 1-31 toAprevent its upward movement. The lock rod is biased toward this lockingposition by a spring 139 whose opposite ends zare secured to the lockrod and to one of the bolts 140 which secures the bracket 137 .to theframe.

In use, the platforms may be adjusted `manually to any desired position,which depends on the thickness `of the since the serrations extenddownwardly, the pawl being pivoted upwardly as each serration passes it.

When the collating machine is placed in operation, each roller 134engages and rides on the top sheets of the stacks of paper on theplatforms which are carried below' and vpast it by the rotary carrier.If the top sheet is in high enough position, the lock rod 133 is pivotedto the broken line position as a particular platform passes by thefeeler gage 133. The extension 126 of the arm 125'of the shaft 124associated with the platform then engages the gate 131 and pivots itupwardly and passes above the leg 127 of the associated slide 12S. Theshaft 124 is not rotated and the platform remains in its originalposition.

if the top sheet is lin too low a position, the lock rod assumes thefull line position shown in Figure 5, the gate 131 is locked againstupward movement and the extension 126 then engages the under side `ofthe gate 131 and the leg 127 of the slide 128. Since the gate 131 andleg 127 are inclined downwardly, the arm 125 `is pivoted in acounter-clockwise direction causing the shaft 124 to rotate and bringthe arm 123 into engagement with the curved edge 141 of the adjustingpawl 119. As the shaft 1241 continues to rotate, the arm 123 pivots thepawl 119 about its pin 122 into engagement with the serrations 114 andthen its pivotal movement is stopped by the stop 142 on the slidingplate 120. Further rotation of the shaft 124 then causes thesliding'plate to move upwardly in the block 11S and, since the adjustingpawl is now in engagement with the serrations 114 of the leg 113, theplatform is also raised. The keeper pawl, of course, then engages thenext lower serration to prevent downward movement of the platform afterthe extension 126 moves out of engagement with the leg 127 of the slide123 as the rotary movement of the rotary carrier carries the vplatformpast theslide. When the extension 126 moves out of engagement-with theleg 127, the shaft 124 `rotates back to `theposition shown in full linesin Figure since the weight of the plate 120, the pawl 122 and the weight143 on the end of the arm 123 bias it toward this position. All thecomponents of the platform adjusting mechanism are vmachine has beenillustrated and describedwhichincludes a rotary carrier 23 having fourshafts 31 on each of which shafts are mounted two Iplatforms 32. It-willalso be noted that a rotary Aguide '29 maintains `the platforms inhorizontal positions during rotary movement of the carrier. AIt will `beapparent that a rocker frame l is oscillated in timed or synchronousrelation to themoveyment of the rotary carrier so that the blowernozzles and suction feet mounted on .the rocker frame advance towardstacks of paper on the ,plat-forms 32 as each platform descends past therocker frame to seize the ltop sheet and then move back carryingthesheet to deposit the sheet on ,a table 33 as the next platform advancestoward ,and past the rocker yframe arms 66, the arms 66 thus `beingmoved out of the lpath of travel Aof lthe platforms .as ,the

l platforms lmove pastthe arms 65.

:ltwill also vbe seen that the blower nozzles and suction feet are`rendered operative by valves 77 and 74in synchronism with the movementof the rotary carrier and ythe rocker 'frame by means of cams. Moreover,itiwill beseenthat the rocker frame arms are pivoted downwardly afterthe suction feet are yin position above the stacks by a lever anda cammechanism and that an automatic mechanism vhas -been provided to adjustthe positions `of the platforms on their shafts 31 always to maintainthe top sheet of the stack in proper relation to the suction feet andblower nozzles.

Among lthe chief advantages of the described collating machine are themounting of the blower nozzles'and the suction feet on the same rockerframe 15 which insures that the relative proper positions of the nozzlesand suction feet are always maintained and avoids the .complexities offunction and structure found in collating machines in which the blowernozzles and the suction feet are mounted on separably movable elementsof the machine.

Another advantage of the machine is its flexibility of operationprovided by the mounting of two separately adjustable platforms on eachshaft 31 of the rotary carrier and the provision of two sets of nozzlesand suction feet so that separate stacks of small sheets may be placedon the two platforms of each shaft 31 or a single stack of large sheetsmay be placed on both platforms when the latter are aligned.

Suitable removable upstanding arms 145, such as those shown on one ofthe platforms in Figure 2, may be provided aiong the edges of theplatforms to keep the stacks in proper position onthe platforms.

Manifestly, the construction as shown and described is capable of somemodication and such modification as may be construed -to fall within thescope and meaning of the appended claims is also considered to be withinthe spirit and intent of the invention.

What is claimed is:

l. A collating machine comprising: a main frame; a rotary carriermounted on the frame for rotation about a horizontal axis;circumferentially spaced platforms mounted on said rotary carrier; meansconnected kto said platforms to maintain them horizontal regardless ofthe rotary movement of the rotary carrier; an angular slide carri-ed bysaid main frame having a pivoted gate, a feeler gauge mounted on saidframe above said gate against which stacks of sheets on said platformsare brought into successive engagement during operation of said rotaryframe, a serrated leg depending from each of said platforms, astationary block below each platform, a slotted plate mounted forvertical movement on said block, a keeper pawl pivoted to said plate andengaging justing pawl pivoted to said block and engageable with saidserrations, a shaft extending through a slot in said plate havin'gashort arm engageable withsaid adjusting pawl upon counterclockwiserotation of said shaft, an elongate arm carried by said shaft having anextension adapted to pass through said gate and over said slide when thestack level of sheets on said platform is suticiently high and meanscarried by said feeler gauge for locking said gate closed when the stacklevel of said sheets on said platform fall below normal to constrainsaid extension to pass under said slide and effect engagement of saidshort arm with said adjusting pawl to cause engagement thereof with theserrations of said leg to elevate said platform and restorel the levelof said stack of sheets to its normal height.

2. A collating machine comprising: a frame; a rotary carrier mounted onthe frame for rotation about a horizontal axis; circumferentially spacedplatforms mounted on said rotary carrier; means connected to saidplatforms to maintain them horizontal regardless of the rotary movementof the rotary carrier; a rocker` frame pivotally secured to said frameadjacent its lower end, arms mounted on said rocker frame and extendingtoward said rotary carrier, said arms being disposed over a platformwhen said rocker frame is pivoted toward the rotary carrier; suctionfeet on said arms for engaging sheets of paper on said platforms; a legdepending from each of said platforms hving a serrated edge, a blockhaving a slot through which said leg is vertically slidable, a pawlnormally engaging a serration of said leg to support said platform at aposition to dispose the level of the topmost sheet of the stack on saidplatform normally in a position to be engaged by said suction feet, asecond pawl engageable with said serrations and mounted for verticalmovement, a feeler mechanism against which stacks of sheetsprogressively engage as said rotary carrier rotates` and meansassociated with said second pawl and controlled by said feeler gaugemechanism for engaging said second pawl with said serrations to liftsaid leg and raise said platform an extent predetermined by thediminishing height of the stack of sheets on said platform to restorethe level of the topmost sheet of said stack of sheets to normal height.

3. A collating machine comprising: a frame; a rotary carrier mounted onthe frame for rotation about a horizontal axis; circumferentially spacedplatforms mounted on said rotary carrier; means connectedto saidplatforms to maintain them horizontal regardless of the rotary movementof the rotary carrier; a serrated leg depending from each of saidplatforms and slidablo in a block mounted on said rotary carrier, aslotted plate vertically movable on said block, a shaft movable in theslot of said plate having an elongate arm provided with an extension, aninclined slide carried by said frame having a pivoted gate through whichsaid extension moves to travel over said `slide when the level of thestack of sheets on said platform is at normal height, a feeler gaugemechanism on said frame above said rotary carrier and engageablesuccessively with the topmost sheet of the stacks on said platforms, apawl mounted on said plate and normally engaging the serrations of saidleg to support said platform, means controlled by said feeler gaugemechanism for holding said gate closed when the level of said stack ofsheets is below normal height to cause said extension to travel undersaid slide and rotate said shaft and means carried by said shaft adaptedto engage and actuate said pawl to lift said leg to raise said platformin proportion to the diminishing height of the level of the stack ofsheets on said platform.

4. A collating machine comprising: a frame; a rotary carrier mounted onthe frame for rotation about a horizontal axis; circumferentially spacedplatforms mounted on said rotary carrier; means `connected to saidplatforms `to maintain them horizontal regardless of the rotary movementof the rotary carrier; a rocker frame pivotally secured to said frameadjacent its lower end, arms mounted on said rocker frame and rotatingsaid rotary carrier and said rocker frame in synchronism Vwhereby saidarms are moved into and out of the path of movement ofl said platformsas said rotary carrier is rotated; valve means for said nozzles and saidsuction feet for connecting said suction feet to said supply means whensaid suction feet are positioned above a platform and disconnecting saidsuction feet from said supply means when said suction feet are remotefrom said platforms, an inclined slide having a pivoted gate, a feelermechanism on said frame above said rotary carrier having means againstwhich the topmost sheet of the stacks on said platforms are engaged assaid carrier rotates, a member movable to raise said gate and travelabove said slide as said carrier rotates when the level of the topmostsheet of said stacks is sufficiently high, means carried by said feelermechanism for holding said gate closed when the level of the topmostsheet recedes below normal to cause said movable member to travel undersaid slide, a supporting leg for each platform and means actuated bysaid movable member to impart a lifting impulse to said leg to raisesaid platform and stack to the normal level of the topmost sheet of saidstack.

5. A collating machine comprising: a frame; a rotary carrier mounted onthe frame for rotation about a horizontal axis; circumferentially spacedplatforms mounted on said rotary carrier; means connected to saidplatforms to maintain them horizontal regardless of the rotary movementof the rotary carrier; a rocker frame pivotally secured to said frameadjacent its lower end, arms mounted on said rocker frame and extendingtoward said rotary carrier, said arms being disposed over a platformwhen said rocker frame is pivoted toward the rotary carrier; suctionfeet on said arms for engaging sheets of paper on said platforms; aserrated supporting leg depending from each of said platforms, a blockon said carrier in which said leg/is vertically movable, a slotted plateon said block, a pawl pivoted to said plate and engaging the serrationsof the supporting leg of each platform for holding said platform in apredetermined position, a second pawl engageable with said serrationsbut held normally in retracted position, an inclined slide having apivoted gate, disposed above said block, a shaft in the slot of saidplate and having means engaging said second pawl to actuate the same, anarm on said shaft having an extension adapted to lift said gate and moveover said slide as said carriage revolves when the level of the top ofsaid stack of sheets is at normal height, means against which thetopmost sheet of the stack on said platform engages during rotation ofsaid carrier effective to lock said gate and cause said extension totravel under said slide to rotate said shaft in a counterclockwisedirection and cause engagement of said pawl engaging means with saidsecond pawl to actuate the same to raise said platform as the top levelof the stack of sheets thereon is lowered below normal by said suctionfeet.

References Cited in the tile of this patent UNITED STATES PATENTS715,890 Smyth Dec. 16, 1902 1,460,314 Deck June 26, 1923 1,575,892 AshbyMar. 9, 1926 1,726,010 Young Aug. 27, 1929 1,845,907 Cook Feb. 16, 19322,172,519 Reeder Sept. 12, 1939

